Temporary binder.



No. 700,388 Patented May 20, I902.

E. A. TRUSSELL. TEMPORARY BINDER. (Application filed July 21, 1900.)

(No Model.)

Indezi'ir THE- ucnms PETERS cc, mo'm-uyud. WASHINGTON. n, z;

UNITED STATES ,ATENT i FFICE.

EMORY A. TRUSSELL, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE SIEBER &

TRUSSELL MANUFACTURING COMPANY, OF ST. LOUIS, MISSOURI, A COR- PORATION.

TEMPORARY BINDER.

spncrnrcntrronrormm part of Letters PatentNo. 700,388, dated May 20, 1902.

Application filed July 21,1900- Serial No. 24,373. (No model.)

To all whom it 71mg concern.-

.Be it knownthat I, EMORY A; TRUSSELL, a citizen of the United States, residing at the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Temporary Binders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to that class of'de vices used for holding loose sheets ordetached leaves of paper, the object of the invention being the production'of a binder of the character named wherein two pairs of arch-prongs are utilized upon which the loose sheets or leaves are placed and from which they are readily released upon moving the covers of the binder back to back instead of the operation of relieving the arch-prongs from resistance, as in other devices of this nature, when it is desired to remove or insert sheets from or into the binder.

Figure I is a perspective View showing my improved binder in open position. Fig. II is an enlarged detail view of the arch-prongcarrying frames, the prongs, and means by which they are connected. Fig. III is a crosssectional view.taken.on line III III, Fig. II;

Fig. IV is an enlarged cross-sectional View taken through the binder-covers, back, and prong-carrying frames and showing the archprongs in elevation. Fig. V is a detail end view of the binder, showing it in the position assumed for the insertion or removal ofloose sheets. section, of a fragment of the binder-back and one of the arch-prongs. Fig. VII is a crosssectional view of the rear portion of the binder with the parts shown in the positions assumed when thejbinder is closed.

1 designates the covers of the binder, that are joined to the back 2 by interposed sections 3, connected to the parts through flexible hinges 4 and 5. The construction of the covers, the back, and" the connections between these partsis not, however, essential in so far as my invention is concerned, and they may be altered at will.

6 6 designate strips, preferably of metal, and 7 7 are plates secured to said strips by Fig. VI is a detail View, partly in rivets 8 8. The covers 1 are designed to be secured between the strips 6 6 and plates 7 7 a and are held in position between such'parts by rivets inserted through perforations (see Fig. II) in such strips and plates. Seated between the strips and plates are hinge-arms 9 9, that are held by the rivets 8 8, the covers 1 being notched at the location of said hinge-arms to permit of the insertion of the covers between the plates and strips by which they are held. The hinge-arms are joined by each other and having their points flattened on the under sides, as clearly shown, and also being of sufficient length that they will overlap each other when the binder is opened out into flat position, as seen in Figs. I, II, III,

and IV.

A designates loose sheets or leaves of the. a 8o form designed for use in the binder, each sheet or leaf being provided with two pairs theopposing prongs 9 9 are adapted-to pass, the inner prongs entering the inner perfora tions B and the outer prongs entering the outer perforations C as the sheets or leaves are of perforationsB C, (see Fig.I,') through which placed thereon or transferred from one side to the other of the binder.

In the practical use of this hinder the loose sheets or leaves are inserted therein when the arch-prongs 11 11 are separated, as shown in Fig.V, by throwing the covers 1 rearwardly so that their outer-backs approacheach other,

thereby permitting the ready application of the leaves A to either of the arch-prongs 11 11 by slipping them thereon without the necessity of releasing any parts to permit the separation of the prongs, as is commonly the case in devices of the nature to which 'my invention belongs. When the sheets or leaves have been placed on the prongs and the cov-' ers are moved into flat position with the binder open, as shown in Fig. I, the prongs assume the position seen in said last-named figure, in which their ends overlap, thereby preventing the escape of the sheets or leaves from the arches produced by the opposing prongs. The prongs being arranged in alinement with each other, so-as to provide complete arches, the sheets or leaves may be readily moved thereon from side to side of the binder, tl1e prongs at the receiving side entering their respective perforations in the sheets or leaves, and the transference of the sheets or leaves being most easily permitted by reason of the prongs being flattened on their under sides so that the completed arches are of the same diameter from base to base of the opposing prongs. On the closing of the hinder the arch-prongs all pass through their respective perforations in the loose sheets or leaves and into the space within the back of the binder, as seen in Fig. VII, where they securely hold the sheets or leaves from escape. It will be observed that the hingearms 9 9 extend to points approximutely central of the distance between the bases and points of the arch-prongs and are connected at such locations so that the prongs are caused to swing upon a true arc, whereby their movement is in unison and in the necessary portion of a circle to permit the free action and travel of the prongs in all other positions into which the binder is moved.

I claim as my invention-- In a temporary hinder, the combination of a pair of covers, hinge-armspivotally united and seated in said covers, prongs carried by said arms, a plate secured to each of said arms, and strips providing connections between corresponding hinge-arms on the same side of the hinge; said covers being secured between said plates and strips, substantially as described.

EMORY A. TRUSSELL. In presence of-- NELLIE V. ALEXANDER, M. P. SMITH. 

